21953904

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{293}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 65329152

約数和(自身を除く): 43375248

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 223, 293, 336, 446, 586, 669, 879, 892, 1172, 1338, 1561, 1758, 1784, 2051, 2344, 2676, 3122, 3516, 3568, 4102, 4683, 4688, 5352, 6153, 6244, 7032, 8204, 9366, 10704, 12306, 12488, 14064, 16408, 18732, 24612, 24976, 32816, 37464, 49224, 65339, 74928, 98448, 130678, 196017, 261356, 392034, 457373, 522712, 784068, 914746, 1045424, 1372119, 1568136, 1829492, 2744238, 3136272, 3658984, 5488476, 7317968, 10976952, 21953904]

約数ペア:

[(1, 21953904), (2, 10976952), (3, 7317968), (4, 5488476), (6, 3658984), (7, 3136272), (8, 2744238), (12, 1829492), (14, 1568136), (16, 1372119), (21, 1045424), (24, 914746), (28, 784068), (42, 522712), (48, 457373), (56, 392034), (84, 261356), (112, 196017), (168, 130678), (223, 98448), (293, 74928), (336, 65339), (446, 49224), (586, 37464), (669, 32816), (879, 24976), (892, 24612), (1172, 18732), (1338, 16408), (1561, 14064), (1758, 12488), (1784, 12306), (2051, 10704), (2344, 9366), (2676, 8204), (3122, 7032), (3516, 6244), (3568, 6153), (4102, 5352), (4683, 4688)]